<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<script>
    var username = 'fank',age=20,gender='男';
    console.log(username);
    console.log(age);
    console.log(gender);
</script>
</body>
</html>